So then what’s protecting the protection? And that protection? At some point you have to stop. EVSEs have to be UL rated and conform to the J1772 spec. Their entire reason for existing is safety, and they basically don’t do anything else. They don’t modify the delivered power in any way. I guess they have a plug that’s rated for 1000s of connection cycles, but that’s really a safety thing too. Putting another GFCI behind that is a silly waste of time, money and another point of failure.
Look out your window at the power pole, you'll see a transformer. That has breakers, differential relays, and other protections.
> And that protection?
Substations have RTUs and SCADA systems that are constantly monitoring everything for faults. They have cool shit like oil breakers that can kill even the large inputs to the substation.
> At some point you have to stop.
No, you don't. The protections go all the way back to the power generation site.
This must be facetious? A GFCI breaker in a house's electrical panel and any breakers present in the transformer on the utility pole are protecting against _very_ different scenarios -- the breaker in the house is to stop someone from accidentally electrocuting themselves, but the breaker on the pole won't even notice an amount of current that could easily kill someone.
Nothing upstream of your electrical panel is sensitive enough to save you the way GFCI outlets are intended to. They aren't even sensitive enough to tell if your whole house is going up because of an electrical fire, they're there for downed power lines etc you getting zapped in the tub is barely a blip to those protection systems.
